Regulator



(No Model.) 2 Sheets-Sheet 1.

G. P. OTT.

PRESSURE REGULATOR.

No. 336,584. Patented Feb. 23, 1886.

Mime a es: 5? 3 77 N. PETERS. Phowunm m' m. Wash'mgton. u. c.

(No Model.) 2 Sheets-Sheet 2.

G. P. OTT.

- PRESSURE REGULATOR. No. 336,584. Patented Feb. 23, 1886.

UNITED STATES PATENT OFFICE.

GEORGE F. OTT, OF PHILADELPHIA, PENNSYLVANIA.

PRESSURE-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 336,584, dated February 23, 1886.

Application filed December 23, 1885. Serial No. 186,521.

To all whom it may concern:

Be it known that I, GEORGE F. 0T1, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, haveinvented certain new and useful Improvements in Pressure-Regulators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention,., consists of a governor which operates by variations of force between a weight or spring and asuspended flask partly filled with liquid flowing into it from an independent fixed vessel, the level or pressure of the liquid in which is subjectto changes.

In order that my invention may be clearly understood, I have illustrated various forms and applications thereof in the annexed drawi ings, and will proceed to describe these forms successively.

Form 1, represented by' Figure 1 of the l drawings, illustrates the application of my i11- (No mmleLl Vention for governing a steam-pump for feed- 5 5 height, so much mercury will have been forced ing a boiler. A refers to the boiler, and B to the steam-feed pump thereof. The steam-chest of the pump receives steam from the boiler through a pipe, 0, which contains the throttlevalve D. A lever, E, is fixed on the stem of the throttle-valve. ries a weight, 0, and the other end carries the closed flask F. The top of the flask is connected by a flexible pipe or hose, f, with steam-pipe G at a point between the boiler and the throttle-valve, while the bottom of the flask is connected by a flexible pipe or hose, f, with the water-space of the boiler. The flask is hung at such height that when the water stands at the proper level in the the boiler the weight will overbalance the flask and hold the throttle-valve open; but when the water in the boiler rises above this level, and consequently rises in the flask also, the weight of the flask will soon overbalance the weight 6, close the throttle-valve, and hold it closed until the water in the boiler and flask sink so low that the flask is again overbalanced by weight 6, when the throttle-valve is reopened.

Form 2, represented by Fig. 2 of the draw One end of the lever carings, illustrates the application of my invention for controlling the belt-shifter of a boilerfeed pump operated by beltgearing. The flask F is suspended by a cord, which passes over a pulley, f", on the supporting frame G of the belt-shifter H, and is secured to the belt-shifter. Aspring, Lacts on the beltshifter antagonistically to the flask. \Vhen the flask sinks in consequence of a rise of water in it, the belt-shifter shifts the belt K,

from the fast pulley Z on the crank-shaft L of the pump to the loose pulley l thereon.

Form 3, represented by Fig. 3 of the drawings, illustrates the application of my invention for governing the supply of water by a steam pump to a tank. A bulb, M, is connected by a pipe with the bottom of the tank N, and is partly filled with mercury, which flows through a flexible pipe, in, into the bottom of an open flask, O, suspended from one arm of a lever, I, the other arm of which is connected by a cord, 1;, with an arm, (Z, fixed on the stem of the throttle-valve D of steampnmp l3, and carrying a weight, (1. hen the water in the tank reaches the proper over from bulb M into flask O that the latter over-balances weight cl, so as to close the throttlevalve D. If water is drawn from the tank, part of the mercury will flow back into the bulb from the flask, reducing the weight of the latter, so that weightd will reopen the throttle-valve.

Form 4, represented by Fig. 4 of the drawings, illustrates the application of my invention for governing the supply of a liquid from an elevated tank to a basin or receiver at a lower level. The elevated tank N supplies the basin Q, by a pipe, R, a valve, S, in which is cont-rolled by the antagonistic forces of a weight, 8', and a closed flask, T, connected, respectively, to the opposite arms of a lever, s, fixed on the valve-stem. The flask is con nected by a flexible pipe with the bottom of basin Q. As the water in the basin rises, more and more water is forced in the flask, gradually compressing the air therein, until, when the basin has been filled to the proper height, so much water has been forced into the flask that it will overbalance the weight 5" and close the valve S. If the water in the 2 resets;

basin sinks, the compressed air in the flask will force water out of it, so that the weight 3 will reopen the valve.

Form 5, represented by Fig. 5 of the drawings, illustrates the application of my invention for governing the pressure of a liquid in a pipe, the governor controlling the induction-valve to the pipe in the manner clearly illustrated.

It will be observed that some applications of the invention demand a closed flask, while on other occasions an open flask may be used. The device on which the weight or spring and the flask act antagonistically, whatever its specific character, is always a shifter generic ally; hence, underthe term, shifter, used in the ensuing claim, I include a lever for open- GEORGE F. OTT.

Witnesses:

E. F. OTT, WILLIAM S. TOLAND. 

